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Select Main Deck Cards

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{1}
Aether Vial
Artifact
At the beginning of your upkeep, you may put a charge counter on Aether Vial.

{T}: You may put a creature card with mana value equal to the number of charge counters on Aether Vial from your hand onto the battlefield.
2X2 #298 · deckstats.net
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
M3C #283 · deckstats.net
{2}{U}{U}{U}
Azami, Lady of Scrolls
Legendary Creature - Human Wizard
Tap an untapped Wizard you control: Draw a card.
CMM #74 · deckstats.net
0 / 2
{2}{U}{U}
Bident of Thassa
Legendary Enchantment Artifact
Whenever a creature you control deals combat damage to a player, you may draw a card.

{1}{U}, {T}: Creatures your opponents control attack this turn if able.
M3C #177 · deckstats.net
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
M3C #331 · deckstats.net
{U}{U}
Counterspell
Instant
Counter target spell.
CMM #81 · deckstats.net
{4}{U}{U}
Cultural Exchange
Sorcery
Choose any number of creatures target player controls. Choose the same number of creatures another target player controls. Those players exchange control of those creatures. (This effect lasts indefinitely.)
ODY #79 · deckstats.net
{1}{W}
Dawn Charm
Instant
Choose one --

• Prevent all combat damage that would be dealt this turn.

• Regenerate target creature.

• Counter target spell that targets you.
UMA #13 · deckstats.net
{5}{U}
Deepchannel Mentor
Creature - Merfolk Rogue
Blue creatures you control can't be blocked.
SHM #35 · deckstats.net
2 / 2
{2}{U}
Deeproot Waters
Enchantment
Whenever you cast a Merfolk spell, create a 1/1 blue Merfolk creature token with hexproof. (A creature with hexproof can't be the target of spells or abilities your opponents control.)
LCC #152 · deckstats.net
{2}{U}
Drowner of Secrets
Creature - Merfolk Wizard
Tap an untapped Merfolk you control: Target player mills a card.
LRW #58 · deckstats.net
1 / 3
{2}{W}{W}{ // }{3}{W}{W}
Dusk // Dawn
Sorcery // Sorcery
Destroy all creatures with power 3 or greater.


Aftermath (Cast this spell only from your graveyard. Then exile it.)

Return all creature cards with power 2 or less from your graveyard to your hand.
MKC #61 · deckstats.net
{3}{U}{U}
Empress Galina
Legendary Creature - Merfolk Noble
{U}{U}, {T}: Gain control of target legendary permanent. (This effect lasts indefinitely.)
INV #54 · deckstats.net
1 / 3
{3}{U}
Fallowsage
Creature - Merfolk Wizard
Whenever Fallowsage becomes tapped, you may draw a card.
MOC #223 · deckstats.net
2 / 2
--
Flooded Strand
Land
{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.
KTK #233 · deckstats.net
{3}{W}{W}
Fumigate
Sorcery
Destroy all creatures. You gain 1 life for each creature destroyed this way.
MKC #66 · deckstats.net
--
Halimar Depths
Land
Halimar Depths enters the battlefield tapped.

When Halimar Depths enters the battlefield, look at the top three cards of your library, then put them back in any order.

{T}: Add {U}.
AFC #244 · deckstats.net
{U}{U}
Harbinger of the Tides
Creature - Merfolk Wizard
You may cast Harbinger of the Tides as though it had flash if you pay {2} more to cast it. (You may cast it any time you could cast an instant.)

When Harbinger of the Tides enters the battlefield, you may return target tapped creature an opponent controls to its owner's hand.
DDT #7 · deckstats.net
2 / 2
{2}{W}
Harpoon Sniper
Creature - Merfolk Archer
{W}, {T}: Harpoon Sniper deals X damage to target attacking or blocking creature, where X is the number of Merfolk you control.
LRW #19 · deckstats.net
2 / 2
{3}
Herald's Horn
Artifact
As Herald's Horn enters the battlefield, choose a creature type.

Creature spells you cast of the chosen type cost {1} less to cast.

At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.
M3C #296 · deckstats.net
{2}{U}
Intruder Alarm
Enchantment
Creatures don't untap during their controllers' untap steps.

Whenever a creature enters the battlefield, untap all creatures.
FMB1 #25 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
--
Island
Basic Land - Island
({T}: Add {U}.)
OTJ #279 · deckstats.net
{1}{W}
Judge of Currents
Creature - Merfolk Wizard
Whenever a Merfolk you control becomes tapped, you may gain 1 life.
LRW #22 · deckstats.net
1 / 1
{1}{U}{U}
Kopala, Warden of Waves
Legendary Creature - Merfolk Wizard
Spells your opponents cast that target a Merfolk you control cost {2} more to cast.

Abilities your opponents activate that target a Merfolk you control cost {2} more to activate.
LCC #160 · deckstats.net
2 / 2
{2}{U}
Laboratory Maniac
Creature - Human Wizard
If you would draw a card while your library has no cards in it, you win the game instead.
TSR #309 · deckstats.net
2 / 2
{2}{U}
Leech Bonder
Creature - Merfolk Soldier
Leech Bonder enters the battlefield with two -1/-1 counters on it.

{U}, {Q}: Move a counter from target creature onto a second target creature. ({Q} is the untap symbol.)
SHM #43 · deckstats.net
3 / 3
{2}{U}
Long-Term Plans
Instant
Search your library for a card, then shuffle and put that card third from the top.
SCG #38 · deckstats.net
{1}{U}{U}
Lullmage Mentor
Creature - Merfolk Wizard
Whenever a spell or ability you control counters a spell, you may create a 1/1 blue Merfolk creature token.

Tap seven untapped Merfolk you control: Counter target spell.
ZEN #54 · deckstats.net
2 / 2
{U}{U}
Master of the Pearl Trident
Creature - Merfolk
Other Merfolk creatures you control get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)
LCC #162 · deckstats.net
2 / 2
{1}{U}{U}
Merfolk Sovereign
Creature - Merfolk Noble
Other Merfolk creatures you control get +1/+1.

{T}: Target Merfolk creature can't be blocked this turn.
LCC #164 · deckstats.net
2 / 2
{1}{U}
Merrow Commerce
Tribal Enchantment - Merfolk
At the beginning of your end step, untap all Merfolk you control.
LRW #72 · deckstats.net
{3}{U}
Merrow Harbinger
Creature - Merfolk Wizard
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

When Merrow Harbinger enters the battlefield, you may search your library for a Merfolk card, reveal it, then shuffle and put that card on top.
LRW #73 · deckstats.net
2 / 3
{2}{U}
Merrow Reejerey
Creature - Merfolk Soldier
Other Merfolk creatures you control get +1/+1.

Whenever you cast a Merfolk spell, you may tap or untap target permanent.
LCC #165 · deckstats.net
2 / 2
{2}{W}
Mirror Entity
Creature - Shapeshifter
Changeling (This card is every creature type.)

{X}: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.
OTC #83 · deckstats.net
1 / 1
{3}{U}{U}
Misdirection
Instant
You may exile a blue card from your hand rather than pay this spell's mana cost.

Change the target of target spell with a single target.
DDT #15 · deckstats.net
--
Mystic Sanctuary
Land - Island
({T}: Add {U}.)

Mystic Sanctuary enters the battlefield tapped unless you control three or more other Islands.

When Mystic Sanctuary enters the battlefield untapped, you may put target instant or sorcery card from your graveyard on top of your library.
MKC #277 · deckstats.net
--
Nimbus Maze
Land
{T}: Add {C}.

{T}: Add {W}. Activate only if you control an Island.

{T}: Add {U}. Activate only if you control a Plains.
AFC #252 · deckstats.net
{X}{U}{U}
Open into Wonder
Sorcery
X target creatures can't be blocked this turn. Until end of turn, those creatures gain "Whenever this creature deals combat damage to a player, draw a card."
ZNC #34 · deckstats.net
{2}{U}{U}
Opposition
Enchantment
Tap an untapped creature you control: Tap target artifact, creature, or land.
DMR #62 · deckstats.net
{0}
Paradise Mantle
Artifact - Equipment
Equipped creature has "{T}: Add one mana of any color."

Equip {1}
MMA #211 · deckstats.net
--
Path of Ancestry
Land
Path of Ancestry enters the battlefield tapped.

{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
M3C #363 · deckstats.net
{1}{U}{U}
Pemmin's Aura
Enchantment - Aura
Enchant creature

{U}: Untap enchanted creature.

{U}: Enchanted creature gains flying until end of turn.

{U}: Enchanted creature gains shroud until end of turn. (It can't be the target of spells or abilities.)

{1}: Enchanted creature gets +1/-1 or -1/+1 until end of turn.
SCG #45 · deckstats.net
--
Plains
Basic Land - Plains
({T}: Add {W}.)
OTJ #277 · deckstats.net
--
Plains
Basic Land - Plains
({T}: Add {W}.)
OTJ #277 · deckstats.net
--
Plains
Basic Land - Plains
({T}: Add {W}.)
OTJ #277 · deckstats.net
--
Plains
Basic Land - Plains
({T}: Add {W}.)
OTJ #277 · deckstats.net
--
Plains
Basic Land - Plains
({T}: Add {W}.)
OTJ #277 · deckstats.net
--
Plains
Basic Land - Plains
({T}: Add {W}.)
OTJ #277 · deckstats.net
--
Plains
Basic Land - Plains
({T}: Add {W}.)
OTJ #277 · deckstats.net
--
Port Town
Land
As Port Town enters the battlefield, you may reveal a Plains or Island card from your hand. If you don't, Port Town enters the battlefield tapped.

{T}: Add {W} or {U}.
M3C #364 · deckstats.net
--
Prairie Stream
Land - Plains Island
({T}: Add {W} or {U}.)

Prairie Stream enters the battlefield tapped unless you control two or more basic lands.
M3C #365 · deckstats.net
{2}{U}
Propaganda
Enchantment
Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.
M3C #191 · deckstats.net
{W/U}{W/U}
Puresight Merrow
Creature - Merfolk Wizard
{W/U}, {Q}: Look at the top card of your library. You may exile that card. ({Q} is the untap symbol.)
SHM #146 · deckstats.net
2 / 2
{2}{W}
Radiant Destiny
Enchantment
Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

As Radiant Destiny enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1. As long as you have the city's blessing, they also have vigilance.
LCC #135 · deckstats.net
{4}{U}
Reflections of Littjara
Enchantment
As Reflections of Littjara enters the battlefield, choose a creature type.

Whenever you cast a spell of the chosen type, copy that spell. (A copy of a permanent spell becomes a token.)
LCC #168 · deckstats.net
--
Reliquary Tower
Land
You have no maximum hand size.

{T}: Add {C}.
M3C #368 · deckstats.net
{U}
Rishadan Dockhand
Creature - Merfolk
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

{1}, {T}: Tap target land.
MH2 #59 · deckstats.net
1 / 2
{1}{U}
Rootwater Thief
Creature - Merfolk Rogue
{U}: Rootwater Thief gains flying until end of turn.

Whenever Rootwater Thief deals combat damage to a player, you may pay {2}. If you do, search that player's library for a card and exile it, then the player shuffles.
NEM #40 · deckstats.net
1 / 2
{2}{U}
Sage of Fables
Creature - Merfolk Wizard
Each other Wizard creature you control enters the battlefield with an additional +1/+1 counter on it.

{2}, Remove a +1/+1 counter from a creature you control: Draw a card.
LCC #169 · deckstats.net
2 / 2
{1}{U}
Saprazzan Heir
Creature - Merfolk
Whenever Saprazzan Heir becomes blocked, you may draw three cards.
MMQ #99 · deckstats.net
1 / 1
--
Seafloor Debris
Land
Seafloor Debris enters the battlefield tapped.

{T}: Add {U}.

{T}, Sacrifice Seafloor Debris: Add one mana of any color.
ODY #325 · deckstats.net
{2}{U}{U}
Seafloor Oracle
Creature - Merfolk Wizard
Whenever a Merfolk you control deals combat damage to a player, draw a card.
LCC #170 · deckstats.net
2 / 3
{2}{U}{U}
Seahunter
Creature - Human Mercenary
{3}, {T}: Search your library for a Merfolk permanent card, put it onto the battlefield, then shuffle.
NEM #41 · deckstats.net
2 / 2
{1}{U}{U}
Seasinger
Creature - Merfolk
When you control no Islands, sacrifice Seasinger.

You may choose not to untap Seasinger during your untap step.

{T}: Gain control of target creature whose controller controls an Island for as long as you control Seasinger and Seasinger remains tapped.
5ED #121 · deckstats.net
0 / 1
{1}{U}{U}
Sigil Tracer
Creature - Merfolk Wizard
{1}{U}, Tap two untapped Wizards you control: Copy target instant or sorcery spell. You may choose new targets for the copy.
MOR #49 · deckstats.net
2 / 2
--
Skycloud Expanse
Land
{1}, {T}: Add {W}{U}.
MKC #294 · deckstats.net
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
M3C #305 · deckstats.net
{1}
Springleaf Drum
Artifact
{T}, Tap an untapped creature you control: Add one mana of any color.
2XM #291 · deckstats.net
{2}{W/U}
Steel of the Godhead
Enchantment - Aura
Enchant creature

As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)

As long as enchanted creature is blue, it gets +1/+1 and can't be blocked.
SHM #150 · deckstats.net
{1}
Stoneforge Masterwork
Artifact - Equipment
Equipped creature gets +1/+1 for each other creature you control that shares a creature type with it.

Equip {2}
OGW #166 · deckstats.net
{1}{U}
Stonybrook Banneret
Creature - Merfolk Wizard
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Merfolk spells and Wizard spells you cast cost {1} less to cast.
LCC #173 · deckstats.net
1 / 1
{2}{W}
Stonybrook Schoolmaster
Creature - Merfolk Wizard
Whenever Stonybrook Schoolmaster becomes tapped, you may create a 1/1 blue Merfolk Wizard creature token.
MOR #25 · deckstats.net
1 / 2
{3}{W}
Summon the School
Tribal Sorcery - Merfolk
Create two 1/1 blue Merfolk Wizard creature tokens.

Tap four untapped Merfolk you control: Return Summon the School from your graveyard to your hand.
LRW #42 · deckstats.net
{1}{W}{W}{U}
Supreme Verdict
Sorcery
This spell can't be countered.

Destroy all creatures.
RVR #461 · deckstats.net
{2}{U}{U}
Surgespanner
Creature - Merfolk Wizard
Whenever Surgespanner becomes tapped, you may pay {1}{U}. If you do, return target permanent to its owner's hand.
LCC #174 · deckstats.net
2 / 2
{1}{U}{U}
Svyelun of Sea and Sky
Legendary Creature - Merfolk God
Svyelun of Sea and Sky has indestructible as long as you control at least two other Merfolk.

Whenever Svyelun attacks, draw a card.

Other Merfolk you control have ward {1}. (Whenever another Merfolk you control becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)
LCC #175 · deckstats.net
3 / 4
{W}{U}
Sygg, River Guide
Legendary Creature - Merfolk Wizard
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

{1}{W}: Target Merfolk you control gains protection from the color of your choice until end of turn.
LRW #251 · deckstats.net
2 / 2
--
Temple of Enlightenment
Land
Temple of Enlightenment enters the battlefield tapped.

When Temple of Enlightenment enters the battlefield, scry 1.

{T}: Add {W} or {U}.
M3C #386 · deckstats.net
{1}{U}
Thieving Skydiver
Creature - Merfolk Rogue
Kicker {X}. X can't be 0. (You may pay an additional {X} as you cast this spell.)

Flying

When Thieving Skydiver enters the battlefield, if it was kicked, gain control of target artifact with mana value X or less. If that artifact is an Equipment, attach it to Thieving Skydiver.
OTC #118 · deckstats.net
2 / 1
{U}
Tideshaper Mystic
Creature - Merfolk Wizard
{T}: Target land becomes the basic land type of your choice until end of turn. Activate only during your turn.
LRW #93 · deckstats.net
1 / 1
{U}
Triton Shorestalker
Creature - Merfolk Rogue
Triton Shorestalker can't be blocked.
OTC #121 · deckstats.net
1 / 1
--
Unclaimed Territory
Land
As Unclaimed Territory enters the battlefield, choose a creature type.

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.
M3C #399 · deckstats.net
{1}{U}
Vedalken Aethermage
Creature - Vedalken Wizard
Flash (You may cast this spell any time you could cast an instant.)

When Vedalken Aethermage enters the battlefield, return target Sliver to its owner's hand.

Wizardcycling {3} ({3}, Discard this card: Search your library for a Wizard card, reveal it, put it into your hand, then shuffle.)
FUT #61 · deckstats.net
1 / 2
{3}{W}
Veteran of the Depths
Creature - Merfolk Soldier
Whenever Veteran of the Depths becomes tapped, you may put a +1/+1 counter on it.
LRW #46 · deckstats.net
2 / 2
{2}{U}
Vodalian Illusionist
Creature - Merfolk Wizard
{U}{U}, {T}: Target creature phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before its controller untaps during their next untap step.)
WTH #58 · deckstats.net
2 / 2
{1}{U}{U}
Vodalian War Machine
Creature - Wall
Defender (This creature can't attack.)

Tap an untapped Merfolk you control: Vodalian War Machine can attack this turn as though it didn't have defender.

Tap an untapped Merfolk you control: Vodalian War Machine gets +2/+1 until end of turn.

When Vodalian War Machine dies, destroy all Merfolk tapped this turn to pay for its abilities.
FEM #32 · deckstats.net
0 / 4
{2}{U}
Wake Thrasher
Creature - Merfolk Soldier
Whenever a permanent you control becomes untapped, Wake Thrasher gets +1/+1 until end of turn.
DDT #24 · deckstats.net
1 / 1
--
Wanderwine Hub
Land
As Wanderwine Hub enters the battlefield, you may reveal a Merfolk card from your hand. If you don't, Wanderwine Hub enters the battlefield tapped.

{T}: Add {W} or {U}.
LRW #280 · deckstats.net
{4}{U}{U}
Wanderwine Prophets
Creature - Merfolk Wizard
Champion a Merfolk (When this enters the battlefield, sacrifice it unless you exile another Merfolk you control. When this leaves the battlefield, that card returns to the battlefield.)

Whenever Wanderwine Prophets deals combat damage to a player, you may sacrifice a Merfolk. If you do, take an extra turn after this one.
LRW #95 · deckstats.net
4 / 4
--
Ancestral Vision
Sorcery
Suspend 4--{U} (Rather than cast this card from your hand, pay {U} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

Target player draws three cards.
TSR #52 · deckstats.net
{3}{U}
Aquatic Incursion
Enchantment
When Aquatic Incursion enters the battlefield, create two 1/1 blue Merfolk creature tokens with hexproof. (They can't be the targets of spells or abilities your opponents control.)

{3}{U}: Target Merfolk can't be blocked this turn.
RIX #32 · deckstats.net
{U}
Aquitect's Will
Tribal Sorcery - Merfolk
Put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it. If you control a Merfolk, draw a card.
DDT #2 · deckstats.net
{1}{U}{U}
Callaphe, Beloved of the Sea
Legendary Enchantment Creature - Demigod
Callaphe's power is equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

Creatures and enchantments you control have "Spells your opponents cast that target this permanent cost {1} more to cast."
THB #45 · deckstats.net
* / 3
{U}
Cosi's Trickster
Creature - Merfolk Wizard
Whenever an opponent shuffles their library, you may put a +1/+1 counter on Cosi's Trickster.
ZEN #45 · deckstats.net
1 / 1
{2}{U}
Curse of Inertia
Enchantment - Aura Curse
Enchant player

Whenever a player attacks enchanted player with one or more creatures, that attacking player may tap or untap target permanent of their choice.
CMA #35 · deckstats.net
{U}
Dakra Mystic
Creature - Merfolk Wizard
{U}, {T}: Each player reveals the top card of their library. You may put the revealed cards into their owners' graveyards. If you don't, each player draws a card.
JOU #35 · deckstats.net
1 / 1
{1}{U}
Deepwater Hypnotist
Creature - Merfolk Wizard
Inspired -- Whenever Deepwater Hypnotist becomes untapped, target creature an opponent controls gets -3/-0 until end of turn.
BNG #35 · deckstats.net
2 / 1
{3}{U}{U}
Devastation Tide
Sorcery
Return all nonland permanents to their owners' hands.

Miracle {1}{U} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)
LTC #189 · deckstats.net
{3}{U}
Fatestitcher
Creature - Zombie Wizard
{T}: You may tap or untap another target permanent.

Unearth {U} ({U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
ALA #43 · deckstats.net
1 / 2
{1}{U}{U}
Grazilaxx, Illithid Scholar
Legendary Creature - Horror
Whenever a creature you control becomes blocked, you may return it to its owner's hand.

Whenever one or more creatures you control deal combat damage to a player, draw a card.
CLB #723 · deckstats.net
3 / 2
{3}{U}
Herald of Secret Streams
Creature - Merfolk Warrior
Creatures you control with +1/+1 counters on them can't be blocked.
LCC #158 · deckstats.net
2 / 3
{2}{U}
Horseshoe Crab
Creature - Crab
{U}: Untap Horseshoe Crab.
DMR #55 · deckstats.net
1 / 3
{3}{U}
Jalira, Master Polymorphist
Legendary Creature - Human Wizard
{2}{U}, {T}, Sacrifice another creature: Reveal cards from the top of your library until you reveal a nonlegendary creature card. Put that card onto the battlefield and the rest on the bottom of your library in a random order.
A25 #63 · deckstats.net
2 / 2
{1}{W}{U}
Jhessian Balmgiver
Creature - Human Cleric
{T}: Prevent the next 1 damage that would be dealt to any target this turn.

{T}: Target creature can't be blocked this turn.
CON #112 · deckstats.net
1 / 1
{2}{U}{U}
Lu Xun, Scholar General
Legendary Creature - Human Soldier
Horsemanship (This creature can't be blocked except by creatures with horsemanship.)

Whenever Lu Xun, Scholar General deals damage to an opponent, you may draw a card.
CMA #41 · deckstats.net
1 / 3
{3}
Manascape Refractor
Artifact
Manascape Refractor enters the battlefield tapped.

Manascape Refractor has all activated abilities of all lands on the battlefield.

You may spend mana as though it were mana of any color to pay the activation costs of Manascape Refractor's abilities.
C20 #68 · deckstats.net
{3}{U}
Master of Waves
Creature - Merfolk Wizard
Protection from red

Elemental creatures you control get +1/+1.

When Master of Waves enters the battlefield, create a number of 1/0 blue Elemental creature tokens equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)
DDT #1 · deckstats.net
2 / 1
{U}{U}
Merfolk Trickster
Creature - Merfolk Wizard
Flash

When Merfolk Trickster enters the battlefield, tap target creature an opponent controls. It loses all abilities until end of turn.
DOM #56 · deckstats.net
2 / 2
{U}
Merfolk Windrobber
Creature - Merfolk Rogue
Flying

Whenever Merfolk Windrobber deals combat damage to a player, that player mills a card. (They put the top card of their library into their graveyard.)

Sacrifice Merfolk Windrobber: Draw a card. Activate only if an opponent has eight or more cards in their graveyard.
ZNR #70 · deckstats.net
1 / 1
{U}
Mystical Tutor
Instant
Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.
DMR #60 · deckstats.net
{2}
Pillar of Origins
Artifact
As Pillar of Origins enters the battlefield, choose a creature type.

{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.
CMM #970 · deckstats.net
{3}
Quicksilver Fountain
Artifact
At the beginning of each player's upkeep, that player puts a flood counter on target non-Island land they control of their choice. That land is an Island for as long as it has a flood counter on it.

At the beginning of each end step, if all lands on the battlefield are Islands, remove all flood counters from them.
MRD #233 · deckstats.net
{2}{U}
Razorfin Abolisher
Creature - Merfolk Wizard
{1}{U}, {T}: Return target creature with a counter on it to its owner's hand.
EVE #28 · deckstats.net
2 / 2
{U}
Retraction Helix
Instant
Until end of turn, target creature gains "{T}: Return target nonland permanent to its owner's hand."
A25 #71 · deckstats.net
{4}{W}
Reveillark
Creature - Elemental
Flying

When Reveillark leaves the battlefield, return up to two target creature cards with power 2 or less from your graveyard to the battlefield.

Evoke {5}{W} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)
2X2 #26 · deckstats.net
4 / 3
{2}{U}
Rootwater Hunter
Creature - Merfolk
{T}: Rootwater Hunter deals 1 damage to any target.
DDT #16 · deckstats.net
1 / 1
{2}{U}
Scroll Thief
Creature - Merfolk Rogue
Whenever Scroll Thief deals combat damage to a player, draw a card.
DDT #17 · deckstats.net
1 / 3
{1}{U}
Sejiri Merfolk
Creature - Merfolk Soldier
As long as you control a Plains, Sejiri Merfolk has first strike and lifelink. (Damage dealt by a creature with lifelink also causes its controller to gain that much life.)
WWK #36 · deckstats.net
2 / 1
{6}{U}{U}
Slinn Voda, the Rising Deep
Legendary Creature - Leviathan
Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)

When Slinn Voda, the Rising Deep enters the battlefield, if it was kicked, return all creatures to their owners' hands except for Merfolk, Krakens, Leviathans, Octopuses, and Serpents.
DOM #66 · deckstats.net
8 / 8
{1}{U}{U}
Streambed Aquitects
Creature - Merfolk Scout
{T}: Target Merfolk creature gets +1/+1 and gains islandwalk until end of turn. (It can't be blocked as long as defending player controls an Island.)

{T}: Target land becomes an Island until end of turn.
DDT #18 · deckstats.net
2 / 3
{2}{U}{U}
Talrand, Sky Summoner
Legendary Creature - Merfolk Wizard
Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.
OTC #116 · deckstats.net
2 / 2
{2}{U}{U}{U}
Teferi, Mage of Zhalfir
Legendary Creature - Human Wizard
Flash

Creature cards you own that aren't on the battlefield have flash.

Each opponent can cast spells only any time they could cast a sorcery.
TSR #91 · deckstats.net
3 / 4
{3}{U}
Tidal Courier
Creature - Merfolk
When Tidal Courier enters the battlefield, reveal the top four cards of your library. Put all Merfolk cards revealed this way into your hand and the rest on the bottom of your library in any order.

{3}{U}: Tidal Courier gains flying until end of turn.
DDT #19 · deckstats.net
1 / 2
{U}
Tide Shaper
Creature - Merfolk Wizard
Kicker {1} (You may pay an additional {1} as you cast this spell.)

When Tide Shaper enters the battlefield, if it was kicked, target land becomes an Island for as long as Tide Shaper remains on the battlefield.

Tide Shaper gets +1/+1 as long as an opponent controls an Island.
MH2 #72 · deckstats.net
1 / 1
{U}{U}
Tidebinder Mage
Creature - Merfolk Wizard
When Tidebinder Mage enters the battlefield, tap target red or green creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control Tidebinder Mage.
DDT #22 · deckstats.net
2 / 2
{2}{W}{W}{U}
Time Wipe
Sorcery
Return a creature you control to its owner's hand, then destroy all creatures.
MOC #340 · deckstats.net
{3}{U}
Toothy, Imaginary Friend
Legendary Creature - Illusion
Partner with Pir, Imaginative Rascal (When this creature enters the battlefield, target player may put Pir into their hand from their library, then shuffle.)

Whenever you draw a card, put a +1/+1 counter on Toothy, Imaginary Friend.

When Toothy leaves the battlefield, draw a card for each +1/+1 counter on it.
BBD #12 · deckstats.net
1 / 1
{2}{U}
Vizier of Tumbling Sands
Creature - Human Cleric
{T}: Untap another target permanent.

Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.)

When you cycle Vizier of Tumbling Sands, untap target permanent.
CMM #131 · deckstats.net
1 / 3
{3}{U}{U}
Waterspout Weavers
Creature - Merfolk Wizard
Kinship -- At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with Waterspout Weavers, you may reveal it. If you do, each creature you control gains flying until end of turn.
MOR #56 · deckstats.net
3 / 3
{3}{U}
Wonder
Creature - Incarnation
Flying

As long as Wonder is in your graveyard and you control an Island, creatures you control have flying.
CM2 #56 · deckstats.net
2 / 2